Question

A certain genetic abnormality occurs in roughly 4% of the population. A blood
test will detect the abnormality in 92% of those who have it. However, a falsepositive
result occurs 2.5% of the time for those who do not have the
abnormality.
A. Draw a tree diagram to illustrate the situation. Include all probabilities.
I'm confused on how too draw a tree diagram for probabilities please help!

Answer 1

Have you consider drawing the tree diagram?



Use the rest of the problem statement to fill in the blanks.

Answer 2

do i fill it in with actual positive, actual negative, false positive, and false negative; and then at the end the abnormality?

Answer 3

@tkhunny

Answer 4

False Positives appear ONLY if you are Clear.